1992 Chevy Lumina Speaker Help!!

I have a 1992 Chevy Lumina Euro 2-dr Coupe without Bose. I know the dash speakers are 4x6" and I've read that the rear deck speakers are 6x9", but Crutchfield says I will need alterations to install a 6x9" into the rear. The factory speakers are held in by brackets, not screws. If I need to take pictures, let me know. Please let me know ASAP.

You probably can't use that mounting method. Looks like the speakers just sit in that bracket and the bracket clamps in.

What I think you are going to want to do is drill holes in the sheet metal above the speakers and use screws and nuts to hold them in - easier to do if you can get to the top side of the shelf (remove the speaker covers or the rear parcel shelf).

The 6x9's will fit you may just have to make some modifications to the mounting brackets. Speakers will usually come with some brackets that may work just fine which means you won't need to make any modifications. Pics could help if your willing. It's hard to say that nothing will fit because all speakers are different when it comes to mounting holes. I know when I put the speakers in my doors a 6 3/4" didn't fit right so I had to make some custom "bracketry" for one screw hole because 3 of them lined up fine but one didn't. It still shouldn't be that hard to make custom brackets as long as you have a drill and some spare metal or even plastic, with something to cut it, lying around.

I can't take off the speaker cover from inside because its apart of the rear deck. The only way to access the speakers are from the inside of the trunk. There are no mounting holes besides for those brackets. New pictures are posted, just use the same link.

You probably can't use that mounting method. Looks like the speakers just sit in that bracket and the bracket clamps in.

What I think you are going to want to do is drill holes in the sheet metal above the speakers and use screws and nuts to hold them in - easier to do if you can get to the top side of the shelf (remove the speaker covers or the rear parcel shelf).

Hard to explain, but I would try carefully pushing up on that panel - it might just pop off, or you might be able to figure out what screws are holding it on. A Chilton or Haynes manual might help also.

You might be able to use the brackets, but it's unlikely - the new speaker won't have that locating tab, might be larger depth, and might have different magnet diameter.

You MIGHT be able to use something like rubber bands to hold the new speaker to the bracket, but if the depth is shorter, it won't seal with the rear deck (could use blocks or wood as spacers, though), and if the depth is greater, the bracket won't "lock into" the holder.

You may be able to use those brackets but I'd recommend against it. I'd just pull of the rear deck cover (it just snaps in place and is simple to remove) Then I would do as TigerHeli mentioned and drill some holes and use some bolts. It should take about 30 minutes for a novice like yourself. It's not that difficult to do and you wont risk harming the speakers if you just do it right the first time. I'm not trying to sound like a jerk but if you do it right the first time you should never have any problems.

Tip also - If the recess on the new speaker is large enough that the nut won't interfere with the speaker seating properly, run a nut up on the screw after you drill the hole.

So you would have screw, sheet metal, nut, speaker, and nut on the bottom.

Two advantages here - you don't have to hold the screw inside the car to prevent it from turning when you install the speakers. And if you ever remove the speakers, you can just remove the lower nuts from the trunk side of the car.

I might have to have a friend help me drill out holes if the brackets won't work. Power tools and I aren't big friends :P I kinda thought that the driver from the new speakers might be too big or too small compared to the factory speakers. I'll just have to buy the speakers and figure out what I'll have to do.

I'll just have to buy the speakers and figure out what I'll have to do.

Good idea the only way you can figure out what you have to do is to buy what you want and make it work. Out of curiosity what kind of speakers do you plan to get? Also if you need any help for ideas on installation methods you can ask us but what TigerHeli mentioned should work great and it will make taking the speaker out in the future a breeze. That way if you ever sell the car you can keep your speakers and put the old ones back in.